Rice priced at$20 in 2000→$32.55 in 2018

Historical Price Inflation for Rice

Prices for Rice, 2000-2018 ($20)

According to the U.S. Bureau of Labor Statistics, prices for rice were
62.77% higher
in 2018 versus 2000 (a $12.55 difference in value).

Between 2000 and 2018:Rice experienced an average inflation rate of 2.74% per year.
This rate of change indicates significant inflation.
In other words, rice costing $20 in the year 2000 would cost $32.55 in 2018 for an equivalent purchase.
Compared to the overall inflation rate of 2.12% during this same period, inflation for rice was
higher.

In the year 2000: Pricing changed by -1.59%, which is
significantly below the average yearly
change for rice during the 2000-2018 time period.
Compared to inflation for all items in 2000 (3.38%), inflation for rice was
much lower.

Price Inflation for Rice since 1997

Consumer Price Index, U.S. Bureau of Labor Statistics

Years with the largest changes in pricing:
2008 (27.30%),
2004 (7.17%),
and 2006 (5.64%).

Raw Consumer Price Index data from U.S. Bureau of Labor Statistics for Rice:

How to calculate the inflation rate for rice, 2000-2018

Then plug in historical CPI values from above. The CPI for Rice was 99.285 in the year 2000 and 161.602 in 2018:

161.602 / 99.285* $20 = $32.55

Therefore, according to U.S. Bureau of Labor Statistics, $20 in 2000 has the same "purchasing power" as $32.55 in 2018 (in the CPI category of Rice).

Source: U.S. Bureau of Labor Statistics began tracking the Consumer Price Index for Rice in 1997. In addition to rice, the index produces monthly data on changes in prices paid by urban consumers for a variety of goods and services.